import axios from 'axios'
import { Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import signature from './signature'
import guid from './guid'

// create an axios instance
const Host_URL = process.env.API_ROOT
const service = axios.create({
    baseURL: Host_URL +'/api/v1',//process.env.VUE_APP_BASE_API, // url = base url + request url
    withCredentials: false, // If true send cookies when cross-domain requests
    timeout: 10000 // request timeout
  })
  
  // request interceptor
  service.interceptors.request.use(
    config => {
      // do something before request is sent
      if (store.getters.token) {
        // let each request carry token
        // ['X-Token'] is a custom headers key
        // please modify it according to the actual situation
        // config.headers['X-Token'] = getToken()
        config.headers['Authorization'] = ['Bearer ' + getToken()],
        config.headers['secret'] = signature.secret,
        config.headers['x-requestid'] = guid.newGuid()
      }
      //添加签名的参数20200906
      let timestamp = Date.parse(new Date()) / 1000  //时间戳      
      let nonce = Math.floor(Math.random()*1000) //随机数
      let signaturevalue = signature.signal(timestamp,nonce) //签名
      let appkey = signature.appkey
      config.params = {
        timestamp:timestamp,
        nonce:nonce,
        appkey:appkey,
        signature:signaturevalue
      }

      return config
    },
    error => {
      // do something with request error
      console.log(error) // for debug
      return Promise.reject(error)
    }
  )
  
  // response interceptor
  service.interceptors.response.use(
    /**
     * If you want to get http information such as headers or status
     * Please return  response => response
    */
  
    /**
     * Determine the request status by custom code
     * Here is just an example
     * You can also judge the status by HTTP Status Code
     */
    response => {
      const res = response.data
      // if the custom code is not 20000, it is judged as an error.
       if (response.status != 200) {
        Message({
          message: res.message || 'error',
          type: 'error',
          duration: 5 * 1000
        })
  
        // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
        if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
          // to re-login
          MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
            confirmButtonText: 'Re-Login',
            cancelButtonText: 'Cancel',
            type: 'warning'
          }).then(() => {
            store.dispatch('user/resetToken').then(() => {
              location.reload()
            })
          })
        }
        return Promise.reject(res.message || 'error')
      } else {
        return res
      }
      
    },
    error => {
      console.log('err' + error) // for debug
      Message({
        message: error.message,
        type: 'error',
        duration: 5 * 1000
      })
      return Promise.reject(error)
    }
  )
  
  export default service